Distinct Gene Regulatory Pathways for Human Innate versus Adaptive Lymphoid Cells

Olivia I. Koues, Patrick L. Collins, Marina Cella, Michelle L. Robinette, Sofia I. Porter, Sarah C. Pyfrom, Jacqueline E. Payton, Marco Colonna, Eugene M. Oltz

Research output: Contribution to journalArticlepeer-review

82 Scopus citations

Abstract

Summary Innate lymphoid cells (ILCs) serve as sentinels in mucosal tissues, sensing release of soluble inflammatory mediators, rapidly communicating danger via cytokine secretion, and functioning as guardians of tissue homeostasis. Although ILCs have been extensively studied in model organisms, little is known about these "first responders" in humans, especially their lineage and functional kinships to cytokine-secreting T helper (Th) cell counterparts. Here, we report gene regulatory circuitries for four human ILC-Th counterparts derived from mucosal environments, revealing that each ILC subset diverges as a distinct lineage from Th and circulating natural killer cells but shares circuitry devoted to functional polarization with their Th counterparts. Super-enhancers demarcate cohorts of cell-identity genes in each lineage, uncovering new modes of regulation for signature cytokines, new molecules that likely impart important functions to ILCs, and potential mechanisms for autoimmune disease SNP associations within ILC-Th subsets.

Original languageEnglish
Pages (from-to)1134-1146
Number of pages13
JournalCell
Volume165
Issue number5
DOIs
StatePublished - May 19 2016

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